* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: #f6f9fc;
  color: #0b1f33;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Top banner */
.top-banner {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid #e6ecf2;
}
.banner-inner {
  max-width: 1200px;
  margin: auto;
  padding: 10px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
}
.banner-cta {
  background: linear-gradient(135deg,#6f5cff,#1fbad6);
  color: white;
  padding: 6px 14px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
}

/* Hero */
.hero {
  position: relative;
  padding: 150px 0 140px;
  background: radial-gradient(circle at 70% 0%, #33257a, #081a2b 55%);
  color: white;
  overflow: hidden;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.25;
}
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(140px);
  opacity: 0.55;
}
.orb-a {
  width: 480px;
  height: 480px;
  background: #6f5cff;
  top: -160px;
  right: -160px;
}
.orb-b {
  width: 380px;
  height: 380px;
  background: #1fbad6;
  bottom: -160px;
  left: -160px;
}
.hero-content { position: relative; }
.hero h1 {
  font-size: 52px;
  font-weight: 800;
  max-width: 760px;
}
.hero-sub {
  max-width: 640px;
  font-size: 19px;
  opacity: 0.9;
}
.hero-actions { margin-top: 32px; }
.primary-btn {
  background: linear-gradient(135deg,#6f5cff,#1fbad6);
  color: white;
  padding: 14px 26px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  margin-right: 18px;
  box-shadow: 0 14px 40px rgba(79,70,229,0.35);
}
.secondary-link {
  color: #c7d6ff;
  text-decoration: underline;
}

/* Metrics */
.metrics {
  position: relative;
  margin-top: -70px;
}
.metrics-orb {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(111,92,255,0.18), transparent 70%);
}
.metrics-card {
  position: relative;
  background: white;
  border-radius: 22px;
  padding: 42px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  box-shadow: 0 30px 90px rgba(0,0,0,0.12);
}
.metric { text-align: center; }
.metric-value {
  font-size: 28px;
  font-weight: 800;
  background: linear-gradient(135deg,#6f5cff,#1fbad6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.metric-label {
  font-size: 14px;
  color: #556b82;
}

/* Calculator */
.calculator { padding: 140px 0; }
.section-sub { color: #5f728a; }
.calc-card {
  margin-top: 48px;
  background: white;
  max-width: 440px;
  padding: 36px;
  border-radius: 22px;
  box-shadow: 0 40px 120px rgba(0,0,0,0.15);
}
.calc-card label {
  display: block;
  margin-top: 18px;
  font-weight: 600;
}
.calc-card input {
  width: 100%;
  margin-top: 6px;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid #d6e0ea;
}
.calc-result {
  margin: 28px 0;
  font-size: 18px;
}
.calc-result strong {
  font-size: 26px;
  background: linear-gradient(135deg,#6f5cff,#1fbad6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.pulse { animation: pulse 0.35s ease; }
@keyframes pulse {
  from { transform: scale(1.05); }
  to { transform: scale(1); }
}

/* Video */
.video { padding-bottom: 140px; }
.video-placeholder {
  margin-top: 32px;
  background: #e2e8f0;
  border-radius: 18px;
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #6b7c93;
}
.video-note { margin-top: 14px; color: #5f728a; }

footer {
  background: #081a2b;
  color: #8fa9c4;
  text-align: center;
  padding: 32px;
}